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Beam combination schemes and technologies for the Planet Formation Imager (PFI)
Stefano Minardi, Sylvestre Lacour, Jean-Philippe Berger +4
The Planet Formation Imager (PFI) initiative aims at developing the next generation large scale facility for imaging astronomical optical interferometry operating in the mid-infrar…
Planet Formation Imager (PFI): science vision and key requirements
Stefan Kraus, John D. Monnier, Michael J. Ireland +75
The Planet Formation Imager (PFI) project aims to provide a strong scientific vision for ground-based optical astronomy beyond the upcoming generation of Extremely Large Telescopes…
Astronomical photonics in the context of infrared interferometry and high-resolution spectroscopy
Lucas Labadie, Jean-Philippe Berger, Nick Cvetojevic +9
We review the potential of Astrophotonics, a relatively young field at the interface between photonics and astronomical instrumentation, for spectro-interferometry. We review some…
Sparse aperture masking at the VLT II. Detection limits for the eight debris disks stars Pic, AU Mic, 49 Cet, Tel, Fomalhaut, g Lup, HD181327 and HR8799
L. Gauchet, S. Lacour, A. -M. Lagrange +4
Context. The formation of planetary systems is a common, yet complex mechanism. Numerous stars have been identified to possess a debris disk, a proto-planetary disk or a planetary…
Coherence and information in a fiber interferometer
Aglaé Kellerer, Sidney Wright, Sylvestre Lacour
We present an experiment based on a fibered Mach-Zehnder interferometer. The aim is to familiarize students with fibered optics and interferometry, and to improve their understandi…
The close circumstellar environment of Betelgeuse. IV. VLTI/PIONIER interferometric monitoring of the photosphere
M. Montargès, P. Kervella, G. Perrin +9
Context. The mass-loss mechanism of cool massive evolved stars is poorly understood. The proximity of Betelgeuse makes it an appealing target to study its atmosphere, map the shape…